find the surface area of a hemisphere of radius 20m leave your answer in terms of pi

Answer 1

The surface area of a hemisphere can be found using the formula:

Surface Area = 2πr^2

where r is the radius of the hemisphere.

Plugging in the given value, r = 20m, into the formula:

Surface Area = 2π(20)^2
Surface Area = 2π(400)
Surface Area = 800π m^2

Therefore, the surface area of the hemisphere is 800π m^2.